Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Subsequent Events (Details) $ / shares in Units, $ in Millions		1 Months Ended	9 Months Ended
	Jul. 18, 2019 $ / shares	Jul. 31, 2019 USD ($) numberOfAquisitions service_center_store company-owned_and_franchised_locations	Jun. 30, 2019 USD ($) service_center_store	Jun. 30, 2018 USD ($) service_center_store
Subsequent Event [Line Items]
Consideration for acquisition \| $			$ 50	$ 71
Number of service center stores acquired \| service_center_store			54	63
Subsequent Event
Subsequent Event [Line Items]
Consideration for acquisition \| $		$ 18
Number of acquisitions completed \| numberOfAquisitions		4
Number of service center stores acquired \| service_center_store		3
Dividend per share (usd per share) \| $ / shares	$ 0.106
Number of company-owned Quick Lube locations \| company-owned_and_franchised_locations		500